The Webuzo Team has released Webuzo 2.4.9. This version introduces a domain addition fix.
The following is a list of all changes :

1) [Feature] You can now view and edit Exim configuration file from the panel itself.

2) [Feature] Mail client details can be now viewed on Email accounts page.

3) [Feature] You will now receive emails on Admin Email Address when update for installed applications is found. You can disable such mails by disabling the 'Notify Application Updates' from General settings page from the Admin panel.

4) [Feature] You can now set 'Disable System Application' option using cli.php.